Manufacturer Part Number
LTC4054ES5-4.2#TRMPBF
Manufacturer
analog-devices
Introduction
The LTC4054ES5-4.2#TRMPBF by Analog Devices is a highly efficient and compact single-cell lithium-ion battery charger integrated circuit, designed for portable applications, provided in a surface-mount package for easy incorporation into various electronic devices.
Product Features and Performance
Linear charger for single-cell lithium-ion batteries
Automatic recharge functionality
Charging current programmable up to 800mA
No external MOSFET, sense resistor, or blocking diode required
Thermal regulation maximizes charge rate without risk of overheating
Charges from a USB port or external power supply
High-accuracy preset voltage regulation (±1%)
Product Advantages
High integration leads to a reduced component count and system cost
Enables fast charging of lithium-ion batteries improving usability of portable devices
Compact SOT-23-5 package facilitates design in space-constrained applications
Thermal feedback regulates charge current to limit the temperature rise, enhancing safety
Key Technical Parameters
Battery Pack Voltage: 4.2V
Maximum Charge Current: 800mA
Voltage Supply (Max): 6.5V
Number of Cells: 1
Operating Temperature: -40°C ~ 85°C (TA)
Quality and Safety Features
Precision charge voltage regulation to ensure long battery life
Over-temperature protection
Battery condition monitoring to prevent overcharging
Compatibility
Specifically designed for single-cell lithium-ion batteries
Suitable for use in USB-powered devices or with external power supplies
Application Areas
Portable consumer electronics such as smartphones, tablets, and digital cameras
Wearable technology
Medical devices
Wireless headphones and earbuds
Product Lifecycle
Currently, in an Active status indicating ongoing manufacturing and availability
No immediate indication of discontinuation, ensuring supply consistency for new designs
Several Key Reasons to Choose This Product
High-efficiency charging solution for lithium-ion batteries, crucial for extending the operating times of portable devices
Simplifies design complexities due to its integrated nature and lack of requirement for many external components
Supports safe and fast charging, enhancing user experience through quick turnaround times and operational safety
Its compact size allows for greater flexibility in designing small and innovative portable devices
Proven product from Analog Devices, known for their reliability and performance in power management solutions
LTC4054ES5Linear Technology
LTC4054ES5-4.2LT